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LDA880: yellow dwarf star with 4 planets

 
LDA880.1
  LDA880.2  
LDA880.3
 
LDA880.4
 

Solar system 'LDA880' comprises the star 'LDA880' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 193 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LDA880', a yellow dwarf class star that contains about 99.84% of the system's known mass and dominates it gravitationally. LDA880 is located more than 4791 lightyears from the center of the galaxy.

This solar system comprises 4 planets

LDA880.1 is a large terrestrial planet (8553 km radius) which orbits its star in 421 Earth days, one day on LDA880.1 lasts 7 Earth hours. Its average temperature is 445 K (172 C), its atmosphere mainly consists of nitrogen, oxygen and it has 29 moons.
LDA880.2 is a very large terrestrial planet (10540 km radius) which orbits its star in 1322 Earth days, one day on LDA880.2 lasts 6 Earth hours. Its average temperature is 193 K (-80 C), its atmosphere mainly consists of nitrogen, oxygen and it has 31 moons.
LDA880.3 is a medium terrestrial planet (6081 km radius) which orbits its star in 2430 Earth days, one day on LDA880.3 lasts 10 Earth hours. Its average temperature is 129 K (-144 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 12 moons.
LDA880.4 is a large gas giant (77024 km radius) which orbits its star in 4465 Earth days, one day on LDA880.4 lasts 4 Earth hours. Its average temperature is 1728 K (1455 C), its atmosphere mainly consists of hydrogen, helium and it has 121 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LDA880.1LDA880.2LDA880.3LDA880.4
distance from star:76*106 km163*106 km245*106 km368*106 km
radius:8553 km10540 km6081 km77024 km
mass:5005*1021 kg9367*1021 kg1798*1021 kg3655680*1021 kg
surface gravity: 4.56 m/s2
0.46 Earths
5.62 m/s2
0.57 Earths
3.24 m/s2
0.33 Earths
41.1 m/s2
4.20 Earths
escape velocity:8.838 km/s10.89 km/s6.282 km/s79.59 km/s
year: 1443 LDA880.1 days
421 Earth days
5288 LDA880.2 days
1322 Earth days
5832 LDA880.3 days
2430 Earth days
26790 LDA880.4 days
4465 Earth days
day:7 hrs6 hrs10 hrs4 hrs
axial tilt:10°61°
temperature:445 K
172 C
193 K
-80 C
129 K
-144 C
1728 K
1455 C
atmosphere:7% H2
3% He
48% N2
42% O2
0% other
1% He
55% N2
44% O2
0% other
22% H2
3% He
26% N2
48% O2
1% CO2
0% other
86% H2
14% He
0% other
moons:293112121
rings:50113

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